Can acoustical tiles be repainted? If so, will it affect the acoustical or fire performance?
Yes, most acoustical tiles may be repainted. Care must be taken to select a paint that has high hiding power, low combustibility and is not likely to bridge openings in the tile. Even a thin application may affect the acoustical performance by a reduction of .10 NRC. Also, depending on the burning characteristics of the paint the flame spread rating may exceed a Class A rating and can not be guaranteed.
